Buy ‘serial’ with Bitcoin Crypto-Currency – Spendabit

Black Magic Probe with JTAG Cable and Serial Cable (V2.1)

$106 at The Pi Hut

Tiny Thermal Receipt Printer - TTL Serial / USB

$59.24 at The Pi Hut

Nano Thermal Receipt Printer - TTL Serial

$53.40 at The Pi Hut

HC-05 Bluetooth Serial Transceiver

$4.94 at The Pi Hut

HC-06 Bluetooth Serial Transceiver

$6.18 at The Pi Hut

Tripp Lite SmartOnline 120V 1.5KVA 1350 Watts Double-Conversion UPS, 2U Rack / Tower, Extended Run, Pre-Installed WEBCARDLX Network Interface, USB, DB9 Serial (SMART1500RM2UN)

$1,120 at Newegg

Tripp Lite SmartPro 120V 750 VA 600 Watts Line-Interactive Sine Wave UPS, 1U Rackmount, Pre-installed WEBCARDLX Network Interface, USB, DB9 Serial (SMART750RM1UN)

Serial PiZero addon

$13.59 at The Pi Hut

HC-06 Bluetooth Serial Transceiver

$6.18 at The Pi Hut

HC-05 Bluetooth Serial Transceiver

$4.95 at The Pi Hut

Tripp Lite Smart 750VA Sine Wave UPS Back Up, Line-Interactive 120V 600W, 1U Rackmount, Network Management Card Options, USB, DB9 Serial (SMART750RM1U)

Brother P-touch PTP900C Desktop Thermal Transfer Printer Monochrome Label Print USB Serial With Cutter

Citizen CT-E351 Compact Thermal POS Printer, Front Exit, Serial, USB, Black - CT-E351RSU-BK

Brainboxes US-101-001 1 Port USB to Serial RS232 1MBaud

$58.03 at Newegg

EPSON C32C823861 Connect-It Interface Serial With Display Module (Pole Display) Port

$46.99 at Newegg

SparkFun XBee Explorer Serial

$27.90 at RoboSavvy

Weatherproof TTL Serial JPEG Camera with NTSC Video and IR LEDs

$67.51 at The Pi Hut

TTL Serial JPEG Camera with NTSC Video

$49.14 at The Pi Hut

Pololu Qik 2s9v1 Dual Serial Motor Controller

$28.41 at The Pi Hut

Miniature TTL Serial JPEG Camera with NTSC Video

$44.20 at The Pi Hut

FT232 USB to TTL Serial Cable

$12.97 at The Pi Hut

E1115 PS/2 Keyboard to TTL Serial Converter

$20.38 at The Pi Hut

RS422 / RS485 Serial HAT

$41.75 at The Pi Hut

Adafruit CP2102N Friend - USB to Serial Converter

$7.04 at The Pi Hut

USB/Serial Converter (FT232RL)

$21.50 at The Pi Hut

Adafruit WCH CH9102F Friend - USB to Serial Converter

$6.06 at The Pi Hut

USB to Serial Adapter (RS-232)

$12.23 at The Pi Hut

USB + Serial Backpack Kit with 16x2 RGB backlight negative LCD (RGB on Black)

$30.75 at The Pi Hut

FTDI Serial TTL-232 USB Type C Cable - 3V Power and Logic

$24.57 at The Pi Hut

USB + Serial Backpack Kit with 16x2 RGB backlight positive LCD (Black on RGB)

$30.75 at The Pi Hut

USB to Serial Adapter for Raspberry Pi

$4.94 at The Pi Hut

USB CDC Serial Adaptor (3.3v)

$4.94 at The Pi Hut

USB Serial Adaptor (FTDI 3.3v)

$9.88 at The Pi Hut

FTDI Serial TTL-232 USB Cable

$19.27 at The Pi Hut

Adafruit USB + Serial LCD Backpack Add-On with Cable

$15.95 at The Pi Hut

SC15 17kg High Torque Programmable Serial Bus Servo

$23.96 at The Pi Hut

DB9 Serial RS232 OBD2 Cable

$8.15 at The Pi Hut

ESP-01 WiFi Serial Transceiver Module (ESP8266)

$3.71 at The Pi Hut

Serial to Micro-USB adapter for Raspberry Pi Zero (CDC version)

$4.94 at The Pi Hut

USB to Serial D9 RS232 Converter

$11.12 at The Pi Hut

Serial to Micro-USB adapter for Raspberry Pi Zero (FTDI version)

$9.63 at The Pi Hut

FTDI Serial TTL-232 USB Type C Cable (5V Power / 3.3V Logic)

$24.60 at The Pi Hut

Brainboxes US-842 USB to Serial 8 x RS422/485

$448 at Scan Computers

Brainboxes Isolated Industrial Ethernet to Serial 1xRS232/422/485 + Et

$434 at Scan Computers

Brainboxes Industrial Ethernet to 2 Port Serial

$379 at Scan Computers

Brainboxes Isolated Industrial Ethernet to Serial 1xRS232/422/485

$379 at Scan Computers

Brainboxes Industrial Ethernet to 1 port Serial

$324 at Scan Computers

Shuttle XPC slim DH670 Barebone System - Slim PC - Socket LGA-1700 - 1 x Processor Support - Intel H670 Chip - 64 GB DDR4 SDRAM DDR4-3200/PC4-25600 Maximum RAM Support - 2 Total Memory Slots - Serial

Brainboxes US-346 USB to Serial 4 x RS422/485

$284 at Scan Computers

Brainboxes Universal 2 port RS422 or 485 PCI OPTO Velocity Serial Port

$302 at Scan Computers

Brainboxes ES-020 Ethernet to Serial

$175 at Scan Computers

Brainboxes US-313 USB to Serial 2 x RS422/485

$196 at Scan Computers

Brianboxes US-701 USB to Serial 4 x RS232

$210 at Scan Computers

Brainbox ES-357 Ethernet to Serial 1 x RS232 + 1 x RS422/485

$183 at Scan Computers

Brainbox US-257 USB to Serial 2xRS232

$108 at Scan Computers

Brainbox USB to Serial 1 x RS422/485

$67.90 at Scan Computers

USB to Serial RS232 Brainboxes US-101

$54.38 at Scan Computers

EK-FC Bridge TRIPLE Serial CSQ Plexi

$12.33 at Scan Computers

EK-FC Terminal TRIPLE Serial - Plexi

$6.17 at Scan Computers

Avocent ACS8048DAC-400 Acs 8000 48-Port Serial Console Server Dual Internal Ac Power 1U - Console Server - 48 Ports - Gige, Rs-232 - 1U

$4,611 at Newegg